A set is a collection (or list) of objects called "elements", that are normally of the same type. The objects can be anything, but the set does not contain any duplicate values.
Example 1 : The set of integers (whole numbers) = { ... , -2 , -1, 0 , 1, 2, ... }
It is usually denoted as Z in "Blackboard Bold" and is an infinite set because it has an infinite amount of elements.
Example 2 : The set of primary colours = { Red, Blue, Green}
This is a finite set because it only contains 3 elements.
A set in algebra is a set...
That's the beauty of algebra - it's so general, it's not just about numbers!
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If U stands for universal (all of it), let's say U={1,2,3,4,5,6}.
Let's say B and A are subsets of U. Here, A={1,3,4,6}, and B={2,4,5,6}.
U is a set, A and B are subsets. (Subcategories of U)
I hope I've explained this right, I just learned it last week...
Hope this helps!
Set
Word starting with U in algebra are many for example Union, Universal set, Upper limit, Upper bound, etc..........
Boolean algebra deals with logic and truth as it pertains to sets and possibilities. It uses the and, or and not operators to set up truth tables to define if a statement is true or not.
The range of a set is the y value in comparison to the domain which is the x value.
Since "pre-" means before, then pre-algebra would be before algebra. Conversely, algebra would be after pre-algebra. Generally, the next class after a pre-algebra class would be Algebra I, followed by Algebra II.